Molding machine



E."O.. BEARDSLEY AND' W. PIPER.

- MOLDINQ MACHINE. APPLICATION FILED JULY)25. i921. RENEWED sEPT. 21..1 922.

1,436,141.. E I Patented Nov. 21,1922;

3 SHEETSSHtET l.

i E. 0.- BEARDSLEY AND'W. F. PIPER:

MOLDING MACHINE. APPLICATION FILED juwzs. 1921. RENEW 1,436,141.

ED SEPT\21.l922.

Patented NOV.- 21, v1922 3 SHEEISSHEET 2.

W HHHHWHh lJ- l l l? E. O. BEARDSLEY AND W. L PIPER. v I

MOLDING MACHINE. APPLICATION FILED IULY25. IQZII RE NEWED SEPT. 2|. 1922.

1,43 ,141,- Patented N0v.'-2l, 1922 l 3 SHEETS-S'HtET 3.

, Patented Nov. 21,1922.

meant entree STATES PATENT @IFFHCCE.

ELMER O. BEARDSLEY, OF CHICAGO, AND WALTER F. PIPER, OF OAK PARK, ILLIN OIS,

ASSGINORS TO THE BEARDSLEY & PIPER COMPANY, OF CHICAGO, ILLINOIS, A

CORPORATION OF ILLINOIS.

Application filed July 25, 1921, Serial Ilo. 187,290.

.' andWAL'rnn F. PIPER,.bQt/h citizens of the lltl) partly in section and partly in United States and residents of Chica o, in of Cook and State 'of I1 inois,

the count and Oak ark, in the county of Cook and State of Illinois, respectively, have invented certain new and useful Improvements in ll/foldin Machines, of which the following is a ful clear, and exact description.

l The invention relates to molding machines and more particularly to that type in which the molding machine and sand-elevating and feeding mechanism therefor are mounted on a truck tojsupply themachine with aandfrema pile on the foundry floor.

One object of the invention is toprovide an improved portable molding machine in which the mechanism .for propelling the machine over the pile .of sand is notmounted on, but iscontrollable from, thetruck.

Another object of the invention is'to provide an improved propelling mechanism for a truck on whichthe molding. machine and sand-elevator are mounted;

A still further object of-the'invention is to pnovicle improved, propelling mechanism which is adapted to individually-or-Simultaneouely operate. a pluralityfof machines over the moldingmachine room floor.

The invention consistsin the several novel features hereinafter set forth and more particularly defined by claims at the. conclusion hereof. r 1' In the drawings: Fi 1 is a side elevation of a machine embo ying the invention, parts being shownin section. Fig.2.is a section taken on line2-2 of Fig. 1. Figs?) is a side elevation, showing the mechanism for driving the sand-conveyor. Fig. 4 is a view, lan, of a series of machines and the propellmg mechanism therefor. The invention is exemplified in a foundry equipment comprising a series of trucks 4 arranged transversely of one another, each adapted to be propelled over the floor of a molding-room on .'which the sand is arranged in-piles or wind-rows. The trucks oaDING momma.

Renewed September 21, 1922/ Serial No. 589,682.

' construction so that a description of one will be applicable to all.

Each truck comprises a frame made up of sides 5 and tubular cross-members 6 and 7 which are rigidly secured to the frame-sides in suitable manner. The truckis movably sustained byrear carrying wheels 8 which are cross-connected by a shaft 9extending through the tubular member 6 and a pair of front carrying-wheels 10 suitably'journalled on the frame-sides 5'respectively. A moldiilgmachine 11 of any suitable type is securedto a base 12 which is secured to the tubular members 6 by U-bolts 13 and to a bracket 14 which is secured by U-bolts 15 to the tube 7. The molding machine mounted upon the truck may be of any suitable cons'truction, so a detailed description thereof is not herein given. The molding machine illustrated is of the construction set forth in an application filed by us March 14, 1921, Serial No. 452068, to which reference may be had for a detail description thereof.

.A' cross-shaft 16 is journalled in the frame-sides 5 and is provided. with spiral conveyor-blades 17 and 18 which areadapted "to disintegrate the sand on the floor and convey it inwardly to a central elevator which comprises an, endless chain 19 and buckets 20 which are adapted to scoop up the sand fedthereto by the conveyors 17 and 18 and to discharge the sand into a chute 21 from which-it isdischarged into the conveyor 22 which receives the sand for delivery to, and

use in, the molding machine on the truck. This conveying and elevating mechanism serves to keep the molding machine continuously supplied with sand from the pile on the floor. The lower portion of the chain 19 asses around a sprocket 24 on the shaft 16 and its'uppe'r end passes around a sprocket 25. on a shaft 26mounted in bearings 27 on a standard 28 which is secured to'the bracket 14. An electric-motor 29 mounted on the truck drives a gear 31 on the conveyor-shaft 16 through a pinion on the motor-shaft which meshes with an idler 32 which is fixed to a pinion 32 which meshes with gear 31.

conveyors' 17, 1 8 disintegrate the sand and plied with sand it' is necessary to -pr0gressively propel the truck over the foundry" floor and, for this purpose, a Windlass or.

drum 33 is provided for each truck 4. Each drum 33' is adapted to Wind up a cable or flexible element 34, one end ofwhich, is at-' tached thereto and the other end of whichconnected, as at 35, to the truck, so that. when the drum 33 winds up the cable at tached thereto, the truck attached to the cable will be advanced into the pile of sand. Eachdrum 33 is mounted on a shaft '36 which is mounted ina frame 37 A ratchet wheel 38 is rigid with each drum 33.

conjointly operating the winding drums 33 of the series comprises a shaft 40 which is disposed at one end of the molding room and is constantly driven at a reduced speed from an electric motor 41. by a pinion 42 on the motor shaft which meshes with a large gear 43 on the shaft 40. An eccentric 44 for each drum 33 is fixed to the shaft 40 and a pawl 45 is operatively connected to each eccentric.

Each pawl 45 is adapted to operate one of the ratchets 38 and is positioned normally so it willbe disengaged from. the ratchet, its free end resting on a. roller 46 so-that the operation of the pawl will not operate its ratchet. The path of movement of each pawl is controlled by an electric-magnet which comprises a solenoid 48 andan armature 49 33 when desired.

'which carries a roller 50 adapted to lift and hold the pawl 45 into operative relationwith its ratchet 38 to operate the drum Normally, when the coil is de-energized, the armature 49 will be lowered so that the free end of the pawl 45 will rest on the roller 46 and be inoperative to rotate-the ratchet 38. When, and so long as the coil 48 is energized, the armature 49 will hold the pawl 45 elevated to cause the ratchet 38 and drum 33. to be advanced step by step from the shaft 40. A switch 51 suitably mounted on the truck is electrically connected by suitable flexible conductors 52 and 53 to the coil 48 so that the operator of the machines can easily control theadvance of the machine from a point adjacent the truck. Each operator can individually control his machine independently of the others. The invention exemplifies propelling mech anism for a portable molding machine which is mounted on the molding room floor and which is easily controlled by the operator of the machine which is simple in construction and is adapted to operate a plurality of machines from a single motor.

' A dog. 39 engages the ratchet-38 to prevent reverse rotation of the drum. The mechanismifor The invention is not to be understood as restricted to'the details set forth, since these may he modified within the scope of the appended claims, without departingfrom the spirit and scope ofthe invention.

Having thus described the invention,

what we claim as new and desire 'tosecure by Letters Patent, is:

. l. In apparatus for making moulds, the

coinbinationof a portable truck, a molding machine mounted on the truck, means for' conveying sand from the floor and elevating it for use inv the machine, and means for propelling the, truck comprising a cable connected to the truck and stationary mechanism for-winding the cable to advance the :conveying and elevating sand fronf a pile on the floor for use in the machin'e, means for making .moulds, the. f

for propelling the truck comprising a cable connected to the truck and stationary mech an'ism at one end of'th'e' moldmg room for winding the cable to advance the truck and means on the truck for controlling the operation of the winding means,-

3. In apparatus for making moulds, the combination of a portable truck, a molding machine mounted on the .truck, sand-elevating andconveying mechanism mounted on the truck, mechanism for propelling the truck, comprising a pawl and ratchet and electro-magnetic means for controlling the operation of the pawl by the-ratchet,

4. In apparatus for making moulds, the combination of a portable truck, a molding machine mounted on the truck, sand-elevating and conveying mechanism mounted on the truck, mechanism for ratchet ,by the pawl.

5. In apparatus for making moulds, the

combination of a portable truck, a molding machine mounted on the. truck, sand elevating and conveying mechanism mounted on the truck, mechanism for propelling the truek comprising a pawl and ratchet, a motor for operating the pawl, said pawl being normally inoperative to drive the ratchet, and electro-magnetic means for rendering the pawl operative to drive the ratchet.

6. In apparatus for making moulds, the

combination of a portable truck, a molding machine mounted on the truck, sand elevating and conveying mechanism mounted on the truck, driving mechanism for the elevating and conveying mechanism mounted on the truck, means for propelling the truck comprising a cable connected to the truck propelling the. .truck comprising a cable, a drum for windand stationary mechanism at one end of the moldin room for winding the cable to ad vance't e truck, and controlling means .for said operating mechanism. v L

In apparatus for making moulds, the

combination dfoa portable truck, a' molding I machine mounted on the truck,-sand convey ing an d elevating mechanism mounted, on

the'truck, driving mechanism for the, .conwiveying and elevat ng'mechanism mounted on the truck, means for propelling-thetruck comprising a cable'connected to, the truck and stationary mechanism at one'endof the moldin room for winding the cable to ad- I i-Vance t 'e'truck, and controlling'meansfon the truck for said operating-mechanism-, 8. In'apparatus for making moulds, the

combination. of a. portable truck, a molding machine mounted on the truck; sand conveying and elevating mechanism mounted on the truck, driving mechanism for the-connomprisilig a'cable connected to the truck 26 and stationary mechanism at one end of the molding room for'winding the cable to ad- Vance the truck, and electrical controlling means for said-operating mechanism. 7 9. In apparatus for; making moulds, the

30 combination ofv a portabletruc'k, a molding ma.chinemount ed on the truck, sand,convey-' ing and elevating mechanismc-mounted on the truck, means for propelling the truck comprising a cable connected .to: the truck, a stationary drum for winding up the'c'able, pawl and ratchet mechapism 'for operating the drum and means forcontrolling the pawl and ratchet mechanism. c

.10. In apparatus for making moulds, the

l combination of a portable truck, a molding machine mounted on'the truck,sand-c0nvey-- ing and elevating meanson the-truck, driving mechanism for the "conveying and elevating means mounted on the truck, means for n propelling the truck comprising a cable connected to the truck,a stationary drum for winding up the cable, a stationary motor, pawl and ratchet mechanism between the drum and the motor, and means on the truck at for controlling the pawl and ratchet mechanism. I

11. In apparatus for making moulds, the

combination of a portable truck, 'a' molding machine mounted on the truck, sand convey- 5&5 ingand elevating means on the truck, driving mechanism for the conveying and elevating means mounted onthe truck, means for propelling the truck comprising a cable I connected to the truck, a stationary drum "on for winding up-the cable, a stationary motor, pawl and ratchet mechanism between the drum and the motor, and electro-magnetic means on the truck for controlling the pawl and ratchet mechanism.

' 12. In apparatus for making moulds, the combination of a portable truck, a molding machine mounted on the truck, sand elevating and conveying mechanism mounted on the truck, -'andmeans for "propelling the I truck. comprising. a cable connected to the truck, a stationaig motor, a shaft connected to be constantly iven bythe motor, a stationa'ry drumior; winding up the cable, and

el'ectro-magnetically controlled mechanism for operating said drum from the shaft.

13."In apparatus for making moulds, the combination of'a portabletruck, a molding machine mounted on the truck, sand conveying iand elevating me'chani-smfmounted on the truck, and means forjp'ropelling' the truck comprising a'-cable connected to the truck, astationary motor, a shaft connected to be constantlyadriven by the motor, a sta- 'tionary drum forwinding up the cable, a

pawl and ratchet for operating the drum from said shaft, and electro-magnetic means for controlling the operationof said pawl able trucks, a molding machine, sand-elevating'and. conveying mechanism' mounted on each truck, a cable for each truck, a drum for winding up eachvcable, a stationary motor, mechanisms for separately operating the drums by power from said motor, and means a plurality of portfor separatelycontrolling said operating separately controlling said operating me'ch-- anisms.

16. The combination of a plurality. of portable trucks, a molding machine, 'sand elevating and'conveying mechanism mounted on each truck, a cable for each truck, a drum {orwindingup 'each cable, a stationary motor, separate pawl and ratchet mechanisms for operating the drums respectively from "the. motor and electro-magnetic means for controlling the operationofsaid operating mechanism respectively.

17. The combination of a plurality of portable trucks, a molding machine, sand elevating and conveying mechanism mounted on each truck, a cable for each truck, a drum for winding up each cable, a station-, ary motor, a shaft constantly driven by said -motor, separate pawl and ratchet mechanisms for operating the drums from the shaft, and electro-magnetic means for con- I 18." The combination of a plurality of portable trucks,

a molding machine, sand e elevating and conveying mechanism mounted separate pawl and ratchet mechanisms for operating the drums from the shaft; electromagnetic means for controlling the operation of sa-idoperating mechanisms, and 10 switches on the trucks for controlling said electro-mag'netic means.

" ELMER O. BEARDSLEY.

WALTER FLPIPER, 

